Hadith 8:3008
Abu Bakr narrated to us, he said: Ali bin Hashim narrated to us, from Hisham, from his father, who said: Umar used to travel quickly, saying: "Towards you, its girths are agitated, with its fetus lying across in its belly, opposing the religion of the Christians is its religion." And Ibn al-Zubayr used to travel more quickly than the quickest travel.
حدثنا أبو بكر قال نا علي بن هاشم عن هشام عن أبيه قال كان عمر يوضع يقول # إليك تعدو قلقا وضينها % معترض في بطنها جنينها % % مخالف دين النصارى دينها % وكان بن الزبير يوضع أشد الأيضاع %